Scholarlink

Objectives <p>To evaluate the influence of different spatial scanning resolutions of photostimulable phosphor (PSP) plates on digital radiographic images using texture analysis (TA).</p> Materials and methods <p>Digital radiographs of an aluminum step wedge with five steps (0.5&#xa0;mm increments) were acquired at two radiographic exposure times (0.10 and 0.20&#xa0;s). Each image was scanned at four different spatial resolutions (10, 20, 25, and 40 lp/mm), with 10 repetitions per condition. Regions of interest (ROIs) were placed on the steps with thicknesses of 0.5, 1.5, and 2.5&#xa0;mm. Texture features based on the gray-level co-occurrence matrix (GLCM) were extracted using MaZda 4.6 software. Exploratory data analysis was performed, and spatial resolutions were compared within each combination of exposure time and object thickness using ANOVA, followed by Tukey’s post-hoc test (<i>p</i> &lt; 0.05).</p> Results <p>At 0.10&#xa0;s exposure, eight texture parameters exhibited statistically significant differences among spatial resolutions, independent of object thickness, with higher values observed at 10 and 20 lp/mm. For an exposure of 0.20&#xa0;s, two parameters also showed significant differences across resolutions, with higher values at lower resolutions.</p> Conclusions <p>TA revealed that, in the tested PSP system, lower scanning resolutions resulted in images with reduced homogeneity and uniformity, regardless of object thickness.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Scanning resolution influences texture features in intraoral radiographs

  • 期刊论文

  • 发表日期：

    2026年5月12日

查看全文
  • Bianca Costa Goncalves,
  • Pedro Santos Beckmann,
  • Victoria Geisa Brito de Oliveira,
  • Lana Ferreira Santos,
  • Vitoria Aparecida Amorim Correa,
  • Kaan Orhan,
  • André Luiz Ferreira Costa,
  • Sérgio Lúcio Pereira de Castro Lopes

摘要

Objectives

To evaluate the influence of different spatial scanning resolutions of photostimulable phosphor (PSP) plates on digital radiographic images using texture analysis (TA).

Materials and methods

Digital radiographs of an aluminum step wedge with five steps (0.5 mm increments) were acquired at two radiographic exposure times (0.10 and 0.20 s). Each image was scanned at four different spatial resolutions (10, 20, 25, and 40 lp/mm), with 10 repetitions per condition. Regions of interest (ROIs) were placed on the steps with thicknesses of 0.5, 1.5, and 2.5 mm. Texture features based on the gray-level co-occurrence matrix (GLCM) were extracted using MaZda 4.6 software. Exploratory data analysis was performed, and spatial resolutions were compared within each combination of exposure time and object thickness using ANOVA, followed by Tukey’s post-hoc test (p < 0.05).

Results

At 0.10 s exposure, eight texture parameters exhibited statistically significant differences among spatial resolutions, independent of object thickness, with higher values observed at 10 and 20 lp/mm. For an exposure of 0.20 s, two parameters also showed significant differences across resolutions, with higher values at lower resolutions.

Conclusions

TA revealed that, in the tested PSP system, lower scanning resolutions resulted in images with reduced homogeneity and uniformity, regardless of object thickness.